
Real job — pulled straight from Marsh McLennan’s careers page · Verified July 15, 2026 · No reposts.
Job description
Marsh McLennan is hiring a Applications Developer — a full-time, based in London role. Apply directly on Marsh McLennan's careers page below.
Applications Developer
Location: London - Tower Place West
Remote Type: Hybrid
Time Type: Full time
Job Description
Company:
MercerDescription:
Mercer is seeking candidates for the following position based in the London office:
Applications Developer
What can you expect?
This is a hands-on technical role focused on improving the robustness, stability, and performance of our technology systems. You will work across the technology platform, with an initial focus on data pipelines, helping to redesign and enhance data processes to make them more fault tolerant, scalable, and efficient. The role offers broad exposure to investment management data, systems, and the wider business.
We will count on you to:
Work closely with the Head of Production and support teams to identify areas for improvement
Learn our technology architecture and systems, with a focus on trading systems and the data lake used for regulatory reporting
Collaborate with the broader Engineering team to understand practices and architecture
Perform technical analysis to identify root causes of issues
Design and implement technical changes and improvements
Take part in coding and code reviews
Work closely with business teams as needed
What you need to have:
BSc or MSc in a financial, technological, mathematical, or scientific discipline, with a strong analytical foundation
Current experience with C# and Python and a passion for software development
Strong SQL skills
Experience in designing robust data flows and systems
Strong, clear, and concise communication skills, both verbal and written
A strong sense of responsibility and commitment to quality
Self-driven, motivated work ethic
Energetic and enthusiastic personality
What makes you stand out:
IMC or another investment management qualification
Experience with Apache Airflow
Experience with Databricks
Experience with asset management data
Passion for design and architecture
Why join our team:
We help you be your best through professional development opportunities, interesting work and supportive leaders
We foster a vibrant and inclusive culture where you can work with talented colleagues to create new solutions and have impact for colleagues, clients and communities
Our scale enables us to provide a range of career opportunities, as well as benefits and rewards to enhance your well-being
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Frequently asked questions
What skills are required for Applications Developer at Marsh McLennan?
The required skills for Applications Developer at Marsh McLennan include: C#, Python, SQL, Airflow, Databricks.
What is the seniority level for Applications Developer at Marsh McLennan?
Applications Developer at Marsh McLennan is a Mid Level level position.
How do I apply for Applications Developer at Marsh McLennan?
You can view the full description and apply for Applications Developer at Marsh McLennan on EchoJobs: https://echojobs.io/job/marsh-mclennan-applications-developer-9vxe9.